Structure & Function of Carbohydrates

17 %
83 %
Information about Structure & Function of Carbohydrates

Published on June 29, 2009

Author: drpattron68


Structure & Function of Carbohydrates : Structure & Function of Carbohydrates Dr. Deryck D. Pattron, Ph.D. Carbohydrates : Carbohydrates Carbohydrates consist of the elements carbon (C), hydrogen (H) and oxygen (O) with a ratio of hydrogen twice that of carbon and oxygen. Carbohydrates : Carbohydrates 40% and 60% of total calories should come from complex carbohydrates (starches) and naturally occurring sugars. Carbohydrates : Carbohydrates Carbohydrates include sugars, starches, cellulose and many other compounds found in living organisms. In their basic form, carbohydrates are simple sugars or monosaccharides. Carbohydrates : Carbohydrates These simple sugars can combine with each other to form more complex carbohydrates. The combination of two simple sugars is a disaccharide. Carbohydrate : Carbohydrate Carbohydrates consisting of two to ten simple sugars are called oligosaccharides, and those with a larger number are called polysaccharides. Monosaccharides : Monosaccharides Classified by the number of carbons in the saccharide unit. Triose (3-carbons). Tetrose (4-carbons). Pentose (5-carbons) e.g. fructose. Hexoses (6-carbons) e.g. glucose and galactose. Disaccharide : Disaccharide Two monosaccharides linked together E.g. sucrose or table sugar E.g. lactose = glucose + galactose E.g. maltose = glucose + glucose Oligosaccharide : Oligosaccharide Three-ten monosaccharides linked together Raffinose (3 carbon) Stachyose (4 carbon) Polysaccharides : Polysaccharides Many monosaccharides linked together in long chains Starch Glycogen Fiber Cellulose Chitin Polysaccharide : Polysaccharide Branched Polysaccharide : Branched Polysaccharide Branched: storage of energy starch - energy storage in plants (wheat, potatoes) glycogen - energy storage in animals (liver, muscle) Linear Polysaccharide : Linear Polysaccharide Linear: structural material cellulose - found in cotton, plant cell walls. chitin-found in the exoskeleton of insects. Cellulose Molecular Structure : Cellulose Molecular Structure Cellulose Structure : Cellulose Structure Function of Carbohydrates : Function of Carbohydrates Supplies energy-body, brain and the nervous system Source of carbon in metabolic processes Storage form of energy Structural elements of cells and tissues Side effects of Carbohydrates : Side effects of Carbohydrates Excessive carbohydrates can cause an increase in the total caloric intake, causing obesity and pancreatic cancer in women. Deficient carbohydrates can cause a lack of calories (malnutrition), or excessive intake of fats to make up the calories. Low-fat, high-carbohydrate diets contribute to hyperinsulinemia and hypertriglyceridemia. References : References Harper, A. (1999). "Defining the Essentiality of Nutrients." In Modern Nutrition in Health and Disease, 9th edition, ed. M. E. Shills, et al. Baltimore, MD: Williams and Wilkins. Morrison, Gail, and Hark, Lisa (1999). Medical Nutrition and Disease, 2nd edition. Cambridge, MA: Blackwell Science. Subar, A. F., et al. (1998). "Dietary Sources of Nutrients in the U.S. Diet, 1989 to 1991." Journal of the American Dietetic Association 98:537. Wardlaw, Gordon M., and Kessel, Margaret (2002). Perspectives in Nutrition, 5th edition. Boston: McGraw-Hill. Slide 19: THE END

Add a comment

Related presentations

Related pages

Structure and Function of Carbohydrates - Video & Lesson ...

Carbohydrates are found in many foods that we eat and may be found as sugars, starches, or fiber. Learn more about these three distinct types of...
Read more

SparkNotes : Carbohydrates : Functions of Carbohydrates

A summary of Functions of Carbohydrates in 's Carbohydrates. Learn exactly what happened in this chapter, scene, or section of Carbohydrates and what it means.
Read more

Carbohydrates - Structure and Function - Angelfire

Carbohydrates - Structure and Function. Among the most important of the biological molecules are the carbohydrates. Like the previous biomolecules studied ...
Read more

Carbohydrate Structure and Function

Modified 01/19/2010 Maintained by Rich Brown © 2009 Texas Higher Education Coordinating Board
Read more

The Structure, Function and Importance of Carbohydrates | NEB

Glycobiology is the study of the structure, function and biology of carbohydrates, also called glycans, which are widely distributed in nature.
Read more

Carbohydrates - Michigan State University

Carbohydrates are called saccharides or, ... Second, a pentamethyl ether derivative of the pyranose structure converts the hemiacetal function to an acetal.
Read more

Carbohydrate - Wikipedia, the free encyclopedia

Structure Formerly the name ... Some of the main organic reactions that involve carbohydrates are: Carbohydrate acetalisation; Cyanohydrin reaction;
Read more

Carbohydrate chemistry - Wikipedia, the free encyclopedia

Carbohydrate chemistry is a subdiscipline of chemistry primarily concerned with the synthesis, structure, and function of carbohydrates. Due to the general ...
Read more

The structure and function of carbohydrates. - A-Level ...

Extracts from this document... Introduction. The structure and function of carbohydrates Carbohydrates are a widely diverse group of compounds that are ...
Read more